Plasma crystal studies: plasma crystal laser

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Objetivo

By using an artificially generated plasma crystal to produce a regular lattice structure it will be shown that coherent radiation can be generated by a mildly relativistic electron beam propagating through the lattice. The radiation emitted is the usual channel radiation previously studied using solid crystal lattices as the electron wiggler. In the plasma crystal the large micron-sized sphere, which is charged with approximately 10,000 electrons, forms a regular lattice structure which acts as the electron wiggler. Radiation is found theoretically to be emitted at a frequency of 4pg2c/L, where L is the lattice spacing distance and g is the relativistic Lorentz factor for the electrons.

The device will be studied theoretically but with some experimentation. A major problem is the robustness. It has been verified that these structures are very robust (difficult to destroy). The problems associated with the normal channel crystal laser, such as heat dissipation, present no major difficulty since the plasma crystal can easily dissipate excess heat by electron conduction and phonon propagation.